Trueblood is a surname. Notable people with the surname include: Benjamin Franklin Trueblood (1847–1916), American pacifist D. Elton Trueblood (1900–1994), American Quaker theologian Guerdon Trueblood (1933–2021), Costa Rican-American screenwriter Jeremy Trueblood (born 1983), American football player Kathryn Trueblood, American author Kenneth Nyitray Trueblood (1920–1998), American chemist Lyda Trueblood (1892–1958), American female suspected serial killer Mark Trueblood (born 1948), American astronomer and engineer Mary Esther Trueblood (1872–1939) was an American mathematician and sociologist Paul Trueblood (1935–2012), American pianist Robert M. Trueblood, chairman of the Trueblood Committee which attempted to set out the objectives of financial accounting Ted Trueblood (1913-1982), American outdoor writer and conservationist Thomas Trueblood (1856–1951), American professor of elocution and oratory and the first coach of the University of Michigan golf and debate teams Valerie Trueblood, American writer Wilbur Trueblood (1874–1937), American architect See also True Blood, an American television series on HBO